A self-adjusting, drive-on, floating dock for personal watercraft including a central float having a plurality of central float rollers to support the keel or bottom of the hull of a personal watercraft; and a plurality of side floats with attached side float arms having attached side float rollers that support the sides of the hull of a personal watercraft; and in which at least one of the side floats is attached to the central float in such a manner to allow it to float independently of the center float, but is restrained from drifting away from said central float; and the independent buoyant forces created by both the central float and the plurality of side floats together support the hull of a personal watercraft.